Synchronization of system time among smart devices via Security Protocol Data Model (SPDM)

An Information Handling System (IHS) comprising:

• a first Security Protocol and Data Model (SPDM)-enabled device conforming to a SPDM specification, wherein the first SPDM-enabled device comprises at least one processor coupled to at least one memory, the at least one memory having program instructions stored thereon that, upon execution by the at least one processor, cause the IHS to:
• send a first message comprising a first set time to a smart device;
• receive a second message comprising a first current time for the smart device;
• receive a third message comprising a second current time for the smart device;
• identify a consistent deviation between a system time and a smart device current time using information from the second message and the third message;
• and
• send a fourth message comprising a second set time to the smart device, wherein the second set time is calculated by adding a fraction of the consistent deviation to a system time.

An Information Handling System (IHS), comprising:

• a host processor module configured to host one or more processors and two or more devices;
• a control module configured to host a baseboard management controller;
• a control interface configured to support communication between the control module and the host processor module;
• and
• wherein the baseboard management controller comprises at least one processor coupled to at least one memory, the at least one memory having program instructions stored thereon that, upon execution by the at least one processor, cause the baseboard management controller to:
• retrieve a current time from each of the devices;
• validate the current time for each of the devices;
• identify a selected current time to be applied to each of the devices;
• and
• send the selected current time to each of the devices.